Bane of Avernus

Sent into Avernus to keep the Blood War at bay, The Doom Slayer was given this blade to aid in his never ending crusade against the fiendish forces of the Nine Hells. For Centuries he has battled the forces of Devils and Demons with his rage never satiated, as he vows to wipe out the forces of the Nine Hells in a battle he will never win. As he was cast down into the Nine Hells for his crusade, these final words were said to him “Against all the evil that Hell can conjure, all the wickedness that mankind can produce, we will send unto them... Only you. Rip and tear, until it is done.”

 

If thrown, you may use your Bonus Action to summon Demon’s Bane back to your hand.

 

Rip and Tear. 

When Demon’s Bane brings a fiend to 0 hit points, the fiend must make a DC 20 Constitution Saving Throw or its essence be completely annihilated from existence. Regardless of whether or not it is on its home plane or not.

Until It Is Done. 

As an action, you can channel the divine energy infused in the blade. For the next 10 minutes, radiant energy glows from the blade, giving off bright light for 20 ft and dim light for another 20 ft. During this time, you also gain an additional 1d6 radiant damage per hit. After the 10 minutes (or when you choose to end this feature), roll a percentile die. If the roll is equal to or less than 20%, the Bane of Avernus becomes exhausted. Otherwise, it retains Until It Is Done and We Send Unto Them Only You. For each time this feature is used before long resting, the DC goes up by 20%.

We Send Unto Them Only You. 

While Until It Is Done is Activated, you may immediately end its effect, sending a devastating blast of Radiant energy. Each creature within a 30ft radius centered on you must succeed in a DC 15 Dexterity Saving Throw or suffer 4d10 Radiant Damage on a failed save or half as much on a successful one. Fiends must make this Save with disadvantage. Using this feature exhausts Demon’s Bane and you must finish a long rest before using We Send Unto Them Only You and Until It Is Done again.

Proficiency with a Longsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Bonus: Magic, Requires attunement by a Paladin, Combat, Versatile, Sap